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[bison.git] / src / system.h

diff --git a/src/system.h b/src/system.h
index e53fef40cdd48b2619e77d445de3731835652c48..b1d15424b7a1f2ebfaa82847ec2d634e53846529 100644 (file)
--- a/src/system.h
+++ b/src/system.h
@@ -1,3 +1,20 @@
+/* system-dependent definitions for Bison.
+   Copyright 2000, 2001  Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+

 #ifndef BISON_SYSTEM_H
 #define BISON_SYSTEM_H
 
 #ifndef BISON_SYSTEM_H
 #define BISON_SYSTEM_H
 


@@ -5,46 +22,128 @@
 # include <config.h>
 #endif
 
 # include <config.h>
 #endif
 

-#ifdef MSDOS
-#include <io.h>
-#endif
+#include <stdio.h>

 
 

-#ifdef _MSC_VER
-#include <stdlib.h>
-#include <process.h>
-#define getpid _getpid
+#include <assert.h>
+
+#if HAVE_STDLIB_H
+# include <stdlib.h>

 #endif
 
 #endif
 

-#if defined(HAVE_STDLIB_H) || defined(MSDOS)
-#include <stdlib.h>
+/* The following test is to work around the gross typo in
+   systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
+   is defined to 0, not 1.  */
+#if !EXIT_FAILURE
+# undef EXIT_FAILURE
+# define EXIT_FAILURE 1

 #endif
 
 #endif
 

-#if defined(HAVE_UNISTD_H)
-#include <unistd.h>
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0

 #endif
 
 #endif
 

-#if (defined(VMS) || defined(MSDOS)) && !defined(HAVE_STRING_H)
-#define HAVE_STRING_H 1
+#if HAVE_UNISTD_H
+# include <unistd.h>

 #endif
 
 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
 #endif
 
 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)

-#include <string.h>
+# include <string.h>

 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */

-#if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
-#include <memory.h>
-#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
-#ifndef bcopy
-#define bcopy(src, dst, num) memcpy((dst), (src), (num))
-#endif
+# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
+#  include <memory.h>
+# endif /* not STDC_HEADERS and HAVE_MEMORY_H */

 #else /* not STDC_HEADERS and not HAVE_STRING_H */
 #else /* not STDC_HEADERS and not HAVE_STRING_H */

-#include <strings.h>
+# include <strings.h>

 /* memory.h and strings.h conflict on some systems.  */
 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
 
 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
 /* memory.h and strings.h conflict on some systems.  */
 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
 
 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)

-#include <ctype.h>
+# include <ctype.h>
+#endif
+
+#include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+
+/* AIX requires this to be the first thing in the file.  */
+#ifndef __GNUC__
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+ #pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+# endif
+#endif
+
+#if PROTOTYPES
+# define PARAMS(p) p
+#else
+# define PARAMS(p) ()
+#endif
+
+# include "xalloc.h"
+
+/* From xstrndup.c.  */
+char *xstrndup PARAMS ((const char *s, size_t n));
+
+/*---------------------.
+| Missing prototypes.  |
+`---------------------*/
+
+#if !HAVE_DECL_STPCPY
+char *stpcpy PARAMS ((char *dest, const char *src));
+#endif
+
+#if !HAVE_DECL_STRCHR
+char *strchr(const char *s, int c);
+#endif
+
+#if !HAVE_DECL_STRNDUP
+char *strndup PARAMS ((const char *s, size_t size));
+#endif
+
+#if !HAVE_DECL_STRSPN
+size_t strspn(const char *s, const char *accept);
+#endif
+
+#if !HAVE_DECL_STRNLEN
+size_t strnlen PARAMS ((const char *s, size_t maxlen));

 #endif
 
 #endif
 

+#if !HAVE_DECL_MEMCHR
+void *memchr(const void *s, int c, size_t n);
+#endif
+
+
+
+/*-----------------.
+| GCC extensions.  |
+`-----------------*/
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+#  define __attribute__(Spec) /* empty */
+# endif
+/* The __-protected variants of `format' and `printf' attributes
+   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+#  define __format__ format
+#  define __printf__ printf
+# endif
+#endif
+
+
+/*------.
+| NLS.  |
+`------*/
+

 #ifdef HAVE_LOCALE_H
 # include <locale.h>
 #endif
 #ifdef HAVE_LOCALE_H
 # include <locale.h>
 #endif


@@ -52,20 +151,162 @@
 # define setlocale(Category, Locale)
 #endif
 
 # define setlocale(Category, Locale)
 #endif
 

-#ifdef ENABLE_NLS
-# include <libintl.h>
-# define _(Text) gettext (Text)
+#include "libgettext.h"
+#define _(Msgid)  gettext (Msgid)
+#define N_(Msgid) (Msgid)
+
+
+/*-------------------------------.
+| Fix broken compilation flags.  |
+`-------------------------------*/
+
+#ifndef LOCALEDIR
+# define LOCALEDIR "/usr/local/share/locale"
+#endif
+
+
+/*-----------.
+| Booleans.  |
+`-----------*/
+
+#ifndef TRUE
+# define TRUE  (1)
+# define FALSE (0)
+#endif
+typedef int bool;
+
+
+/*-----------.
+| Obstacks.  |
+`-----------*/
+
+# define obstack_chunk_alloc xmalloc
+# define obstack_chunk_free  free
+# include "obstack.h"
+
+#define obstack_sgrow(Obs, Str) \
+  obstack_grow (Obs, Str, strlen (Str))
+
+#define obstack_fgrow1(Obs, Format, Arg1)      \
+do {                                           \
+  char buf[4096];                              \
+  sprintf (buf, Format, Arg1);                 \
+  obstack_grow (Obs, buf, strlen (buf));       \
+} while (0)
+
+#define obstack_fgrow2(Obs, Format, Arg1, Arg2)        \
+do {                                           \
+  char buf[4096];                              \
+  sprintf (buf, Format, Arg1, Arg2);           \
+  obstack_grow (Obs, buf, strlen (buf));       \
+} while (0)
+
+#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)  \
+do {                                                   \
+  char buf[4096];                                      \
+  sprintf (buf, Format, Arg1, Arg2, Arg3);             \
+  obstack_grow (Obs, buf, strlen (buf));               \
+} while (0)
+
+#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)    \
+do {                                                           \
+  char buf[4096];                                              \
+  sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);               \
+  obstack_grow (Obs, buf, strlen (buf));                       \
+} while (0)
+
+
+/*---------------------------------.
+| Machine-dependencies for Bison.  |
+`---------------------------------*/
+
+#ifdef eta10
+# define       MAXSHORT        2147483647
+# define       MINSHORT        -2147483648

 #else
 #else

-# undef bindtextdomain
-# define bindtextdomain(Domain, Directory)
-# undef textdomain
-# define textdomain(Domain)
-# define _(Text) Text
+# define       MAXSHORT        32767
+# define       MINSHORT        -32768

 #endif
 #endif

-#define N_(Text) Text

 
 

-#ifndef LOCALEDIR
-#define LOCALEDIR "/usr/local/share/locale"
+#if defined (MSDOS) && !defined (__GO32__)
+# define       BITS_PER_WORD   16
+# define MAXTABLE      16383
+#else
+# define       BITS_PER_WORD   32
+# define MAXTABLE      32767

 #endif
 
 #endif
 

-#endif  /* BISON_SYSTEM_H */
+#define        WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
+#define        SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
+#define RESETBIT(x, i) ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
+#define BITISSET(x, i) (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
+
+
+/* Extensions to use for the output files. */
+
+#ifdef VMS
+  /* VMS. */
+# define EXT_TAB       "_tab"
+# define EXT_OUTPUT    ".output"
+# define EXT_STYPE_H   "_stype"
+# define EXT_GUARD_C   "_guard"
+#else /* ! VMS */
+# ifdef MSDOS
+   /* MS DOS. */
+#  define EXT_TAB      "_tab"
+#  define EXT_OUTPUT   ".out"
+#  define EXT_STYPE_H  ".sth"
+#  define EXT_GUARD_C  ".guc"
+# else /* ! MSDOS */
+  /* Standard. */
+#  define EXT_TAB      ".tab"
+#  define EXT_OUTPUT   ".output"
+#  define EXT_STYPE_H  ".stype"
+#  define EXT_GUARD_C  ".guard"
+# endif /* ! MSDOS */
+#endif /* ! VMS */
+
+#if defined (VMS) & !defined (__VMS_POSIX)
+# ifndef BISON_SIMPLE
+#  define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
+# endif
+# ifndef BISON_HAIRY
+#  define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
+# endif
+#endif
+
+#if defined (_MSC_VER)
+# ifndef BISON_SIMPLE
+#  define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
+# endif
+# ifndef BISON_HAIRY
+#  define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
+# endif
+#endif
+
+
+/* As memcpy, but for shorts.  */
+#define shortcpy(Dest, Src, Num) \
+  memcpy (Dest, Src, Num * sizeof (short))
+
+/* Free a linked list. */
+#define LIST_FREE(Type, List)                  \
+do {                                           \
+  Type *_node, *_next;                         \
+  for (_node = List; _node; _node = _next)     \
+    {                                          \
+      _next = _node->next;                     \
+      XFREE (_node);                           \
+    }                                          \
+} while (0)
+
+/*---------------------------------.
+| Debugging the memory allocator.  |
+`---------------------------------*/
+
+# if WITH_DMALLOC
+#  define DMALLOC_FUNC_CHECK
+#  include <dmalloc.h>
+# endif /* WITH_DMALLOC */
+
+#endif  /* ! BISON_SYSTEM_H */